What makes muscles grow? - Jeffrey Siegel
AdultsBiologySportsHealth...We have over 600 muscles in our bodies that help bind us together, hold us up, and help us move. Your muscles also need your constant attention, because the way you treat them on a daily basis determines whether they will wither or grow. Jeffrey Siegel illustrates how a good mix of sleep, nutrition and exercise keep your muscles as big and strong as possible.
The amazing ways plants defend themselves - Valentin Hammoudi
AdultsEcologyNatureScience...Plants are constantly under attack. They face threats ranging from microscopic fungi to small herbivores like caterpillars, up to large herbivores like elephants. But plants are ready, with a whole series of internal and external defenses that make them a less appealing meal - or even a deadly one. Valentin Hammoudi explains some of the fascinating ways that plants defend themselves.
Will the ocean ever run out of fish? - Ayana Elizabeth Johnson and Jennifer Jacquet
AdultsAnimalsNatureWorld...When most people think of fishing, we imagine relaxing in a boat and patiently reeling in the day's catch. But modern industrial fishing -- the kind that stocks our grocery shelves -- looks more like warfare. Ayana Elizabeth Johnson and Jennifer Jacquet explain overfishing and its effects on ecosystems, food security, jobs, economies, and coastal cultures.
When is water safe to drink? - Mia Nacamulli
AdultsEcologyHealthScience...Water is refreshing, hydrating, and invaluable to your survival. But clean water remains a precious and often scarce commodity - there are nearly 800 million people who still don't have regular access to it. Why is that? And how can you tell whether the water you have access to - whether from a tap or otherwise - is drinkable? Mia Nacamulli examines water contamination and treatment.
Will we ever be able to teleport? - Sajan Saini
AdultsScienceTechnologyFuture...Is teleportation possible? Could a baseball transform into something like a radio wave, travel through buildings, bounce around corners, and change back into a baseball? Oddly enough, thanks to quantum mechanics, the answer might actually be yes... sort of! Sajan Saini explains.
The science behind the Impossible Burger
AdultsCreativityFoodNeuroscience...The Impossible Burger is meatless, but it tastes, smells, and bleeds like the real thing. The secret ingredient? Neuroscience.
The Man Who Has Inseminated Over 1,000 Honeybees | Amazing Humans
AdultsAnimalsGlobal WarmingNature...The bee population has dropped dramatically and Michael Waite is taking matters into his own hands with a scheme to inseminate Queen bees.
Why It's HARD To Land on Mars
AdultsScienceSpaceTechnologyThis video is about why it's harder to successfully land spacecraft and landers and rovers on Mars than on Earth, or Venus, or the Moon, or Titan, or asteroids. It all comes down to atmospheric density! When there's no atmosphere, you can do a powered descent in a flimsy tinfoil spacecraft like the Lunar Module, and when there's plenty of atmosphere you can do an unpowered descent via heat shield and parachutes like the space shuttle, Apollo command module, Soyuz, Huygens, etc. But on Mars with its thin air, you have to do both powered & unpowered descent, getting the worst of both worlds.
The snakey, viney robot that can go almost anywhere
AdultsCreativityScienceTechnology...Researchers at Stanford University developed a soft, squishy robot that "grows" like a vine and can squeeze through tight spaces. It can also lift heavy objects, which makes it potentially ideal for search-and-rescue operations.
More ice is about to break off of Antarctica - and it's what scientists feared most
AdultsGlobal WarmingNatureWorld...The giant crack that's been racing across Antarctica Larsen C ice shelf finally met its breaking point between July 10 and 12. The result was an iceberg the size of Delaware and weighing a trillion metric tons.
The sound illusion that makes Dunkirk so intense
AdultsCreativityFilmScienceWhy Christopher Nolan is obsessed with Shepard tones.
What happens when you have a concussion? - Clifford Robbins
AdultsHealthNeuroscienceSports...Each year in the United States, players of sports and recreational activities receive between 2.5 and 4 million concussions. How dangerous are all those concussions? The answer is complicated and lies in how the brain responds when something strikes it. Clifford Robbins explains the science behind concussions.
The bizarre physics of fire ants
AdultsAnimalsNatureTechnology...They're not just an animal, they're a material. And that's got engineers interested.